Orville 'by gibson' (as written on the headstock) models: The standards say "standard" on the truss rod cover. The reissues are like yours and don't say anything on the truss rod cover. And they have fret edge nibs.

1. Fret edge binding
2. Black cavity covers
3. Gibson pups
4. No heal cap
5. Sometimes there will be a space after the first number, in the serial number. For example Fujigen will be 3 9999 and the Terada will be G3 8888. This being said, I've seen lots of reissues with no space in the serial number.

59R will have a veneer on maple top, 57C is a plain top and the 57B is the Custom reissue.

This is what is listed in the 92 Catalogue....Neither are listed as a reissue, but then again there isn't a 59R model in the catalogue either and we know they exist. There isn't a P90 model listed in either catalogue for 93, 94 or 96. I have seen Orville P90's before but does anybody know which year they were released?

1. Fret edge binding
2. Black cavity covers
3. Gibson pups
4. No heal cap
5. Sometimes there will be a space after the first number, in the serial number. For example Fujigen will be 3 9999 and the Terada will be G3 8888. This being said, I've seen lots of reissues with no space in the serial number.

59R will have a veneer on maple top, 57C is a plain top and the 57B is the Custom reissue.

EDIT: There is also a 54 reissue that has P90's.

Sorry Gammybird but I think that not all of your points are correct in my humble opinion.
For example white cavity covers still could be a '59R but it will be a Terrada made one instead of Fujigen (who always used black), and the same goes for point 4 which also would point to a Terrada made guitar regardless of the model (they used the heel on many of their models).

What you describe apart from the fret edge binding(which should be on all 59R's) is a ObG Fujigen made '59R and not by all means any ObG 59R.